Technical advances in diesel engines and drivelines.

The first generation of particulate filters had issues. Still do in places. Buddy set his field on fire when his pickup decided to regen in the field as he was delivering hay. Def seems to be pretty trouble free but it is an added issue. The big issue is that from 06 to 12 we have had constant change. Engines run hotter now and that remains to be seen what the outcome is. My 01 cummins runs at 180 my 12 runs at 210.